Coming from the embedded world, \[http://www.osgi.org/ OSGi\] is becoming hot in the desktop and server worlds as a micro-kernel that sits inbetween heavyweight application servers and lightweight containers. Wiki Markup
The next version of \[http://cocoon.apache.org Cocoon\] will \[http://wiki.apache.org/cocoon/osgi use OSGi\] to manage hot-deployable application snippets, and the \[http://directory.apache.org/ Directory project\] is considering using it too. A proposal has also been made to the incubator to host the \[http://oscar.objectweb.org/ Oscar\] implementation. Wiki Markup
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